Going by the example videos, this is nothing like I'd expect a whiteboard video to look like. It fills the slides in erratically, even text. No human does that. It's distracting more than anything. If a human teacher wants to show cause-and-effect, they'll draw the cause, then an arrow, then the effect to emphasize what they're saying. Your videos resemble printing more than drawing.

It seems really strange that you wouldn't farm this kind of thing out to a non-AI function that animates the text properly into the space given using parameters that the AI generated. I mean it's impressive that it does work at all, let alone as well as it does, but are we also going to get an AI to do all the video encoding as well?